Thelopsis challenges the generic circumscription in the Gyalectaceae and brings new insights to the taxonomy of Ramonia
International audience The genus Thelopsis was classified in the family Stictidaceae but its systematic position has never been investigated by molecular methods. In order to determine its family placement and to test its monophyly, fungal DNA of recent collections of Thelopsis specimens was sequenc...
Published in: | The Lichenologist |
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Main Authors: | , , |
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Format: | Article in Journal/Newspaper |
Language: | English |
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HAL CCSD
2021
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Online Access: | https://hal.science/hal-03195794 https://doi.org/10.1017/S002428292000050X |
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ftunivrennes1hal:oai:HAL:hal-03195794v1 |
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Université de Rennes 1: Publications scientifiques (HAL) |
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ftunivrennes1hal |
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English |
topic |
Arthoniales Gyalectales lichen multispory phylogeny [SDE.BE]Environmental Sciences/Biodiversity and Ecology |
spellingShingle |
Arthoniales Gyalectales lichen multispory phylogeny [SDE.BE]Environmental Sciences/Biodiversity and Ecology Ertz, D. Sanderson, N. Lebouvier, M. Thelopsis challenges the generic circumscription in the Gyalectaceae and brings new insights to the taxonomy of Ramonia |
topic_facet |
Arthoniales Gyalectales lichen multispory phylogeny [SDE.BE]Environmental Sciences/Biodiversity and Ecology |
description |
International audience The genus Thelopsis was classified in the family Stictidaceae but its systematic position has never been investigated by molecular methods. In order to determine its family placement and to test its monophyly, fungal DNA of recent collections of Thelopsis specimens was sequenced. Phylogenetic analyses using nuLSU, RPB2 and mtSSU sequences reveal that members of Thelopsis form a monophyletic group within the genus Gyalecta as currently accepted. The placement of Thelopsis, including the generic type T. rubella, within the genus Gyalecta challenges the generic circumscription of this group because Thelopsis is well recognized by the combination of morphological characters: perithecioid ascomata, well-developed periphysoids, polysporous asci and small, few-septate ellipsoid-oblong ascospores. The sterile sorediate Opegrapha corticola is also placed in the Gyalectaceae as sister species to Thelopsis byssoidea + T. rubella. Ascomata of O. corticola are illustrated for the first time and support its placement in the genus Thelopsis. The hypothesis that O. corticola might represent the sorediate fertile morph of T. rubella is not confirmed because the species is phylogenetically and morphologically distinct. Thelopsis is recovered as polyphyletic, with T. melathelia being placed as sister species to Ramonia. The new combinations Thelopsis corticola (Coppins P. James) Sanderson Ertz comb. nov. and Ramonia melathelia (Nyl.) Ertz comb. nov. are introduced and a new species of Gyalecta, G. amsterdamensis Ertz, is described from Amsterdam and Saint-Paul Islands, characterized by a sterile thallus with discrete soralia. Petractis luetkemuelleri and P. nodispora are accommodated in the new genus Neopetractis, differing from the generic type (P. clausa) by having a different phylogenetic position and a different photobiont. Francisrosea bicolor Ertz Sanderson gen. sp. nov. is described for a sterile sorediate lichen somewhat similar to Opegrapha corticola but having an isolated phylogenetic position as ... |
author2 |
Meise Botanic Garden Belgium (Plantentuin) Chercheur indépendant Ecosystèmes, biodiversité, évolution Rennes (ECOBIO) Université de Rennes (UR)-Institut Ecologie et Environnement - CNRS Ecologie et Environnement (INEE-CNRS) Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)-Observatoire des Sciences de l'Univers de Rennes (OSUR) Université de Rennes (UR)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Rennes 2 (UR2)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Rennes 2 (UR2)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Centre National de la Recherche Scientifique (CNRS) Institut Polaire Français Paul Emile Victor, IPEV |
format |
Article in Journal/Newspaper |
author |
Ertz, D. Sanderson, N. Lebouvier, M. |
author_facet |
Ertz, D. Sanderson, N. Lebouvier, M. |
author_sort |
Ertz, D. |
title |
Thelopsis challenges the generic circumscription in the Gyalectaceae and brings new insights to the taxonomy of Ramonia |
title_short |
Thelopsis challenges the generic circumscription in the Gyalectaceae and brings new insights to the taxonomy of Ramonia |
title_full |
Thelopsis challenges the generic circumscription in the Gyalectaceae and brings new insights to the taxonomy of Ramonia |
title_fullStr |
Thelopsis challenges the generic circumscription in the Gyalectaceae and brings new insights to the taxonomy of Ramonia |
title_full_unstemmed |
Thelopsis challenges the generic circumscription in the Gyalectaceae and brings new insights to the taxonomy of Ramonia |
title_sort |
thelopsis challenges the generic circumscription in the gyalectaceae and brings new insights to the taxonomy of ramonia |
publisher |
HAL CCSD |
publishDate |
2021 |
url |
https://hal.science/hal-03195794 https://doi.org/10.1017/S002428292000050X |
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ENVELOPE(-63.716,-63.716,-64.283,-64.283) ENVELOPE(-57.715,-57.715,51.467,51.467) |
geographic |
Paul Islands Saint-Paul |
geographic_facet |
Paul Islands Saint-Paul |
genre |
Paul Islands |
genre_facet |
Paul Islands |
op_source |
ISSN: 0024-2829 EISSN: 1096-1135 Lichenologist https://hal.science/hal-03195794 Lichenologist, 2021, 53 (1), pp.45-61. ⟨10.1017/S002428292000050X⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1017/S002428292000050X hal-03195794 https://hal.science/hal-03195794 doi:10.1017/S002428292000050X |
op_doi |
https://doi.org/10.1017/S002428292000050X |
container_title |
The Lichenologist |
container_volume |
53 |
container_issue |
1 |
container_start_page |
45 |
op_container_end_page |
61 |
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1798852918716137472 |
spelling |
ftunivrennes1hal:oai:HAL:hal-03195794v1 2024-05-12T08:09:38+00:00 Thelopsis challenges the generic circumscription in the Gyalectaceae and brings new insights to the taxonomy of Ramonia Ertz, D. Sanderson, N. Lebouvier, M. Meise Botanic Garden Belgium (Plantentuin) Chercheur indépendant Ecosystèmes, biodiversité, évolution Rennes (ECOBIO) Université de Rennes (UR)-Institut Ecologie et Environnement - CNRS Ecologie et Environnement (INEE-CNRS) Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)-Observatoire des Sciences de l'Univers de Rennes (OSUR) Université de Rennes (UR)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Rennes 2 (UR2)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Rennes 2 (UR2)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Centre National de la Recherche Scientifique (CNRS) Institut Polaire Français Paul Emile Victor, IPEV 2021-01 https://hal.science/hal-03195794 https://doi.org/10.1017/S002428292000050X en eng HAL CCSD Cambridge University Press (CUP) info:eu-repo/semantics/altIdentifier/doi/10.1017/S002428292000050X hal-03195794 https://hal.science/hal-03195794 doi:10.1017/S002428292000050X ISSN: 0024-2829 EISSN: 1096-1135 Lichenologist https://hal.science/hal-03195794 Lichenologist, 2021, 53 (1), pp.45-61. ⟨10.1017/S002428292000050X⟩ Arthoniales Gyalectales lichen multispory phylogeny [SDE.BE]Environmental Sciences/Biodiversity and Ecology info:eu-repo/semantics/article Journal articles 2021 ftunivrennes1hal https://doi.org/10.1017/S002428292000050X 2024-04-18T00:15:43Z International audience The genus Thelopsis was classified in the family Stictidaceae but its systematic position has never been investigated by molecular methods. In order to determine its family placement and to test its monophyly, fungal DNA of recent collections of Thelopsis specimens was sequenced. Phylogenetic analyses using nuLSU, RPB2 and mtSSU sequences reveal that members of Thelopsis form a monophyletic group within the genus Gyalecta as currently accepted. The placement of Thelopsis, including the generic type T. rubella, within the genus Gyalecta challenges the generic circumscription of this group because Thelopsis is well recognized by the combination of morphological characters: perithecioid ascomata, well-developed periphysoids, polysporous asci and small, few-septate ellipsoid-oblong ascospores. The sterile sorediate Opegrapha corticola is also placed in the Gyalectaceae as sister species to Thelopsis byssoidea + T. rubella. Ascomata of O. corticola are illustrated for the first time and support its placement in the genus Thelopsis. The hypothesis that O. corticola might represent the sorediate fertile morph of T. rubella is not confirmed because the species is phylogenetically and morphologically distinct. Thelopsis is recovered as polyphyletic, with T. melathelia being placed as sister species to Ramonia. The new combinations Thelopsis corticola (Coppins P. James) Sanderson Ertz comb. nov. and Ramonia melathelia (Nyl.) Ertz comb. nov. are introduced and a new species of Gyalecta, G. amsterdamensis Ertz, is described from Amsterdam and Saint-Paul Islands, characterized by a sterile thallus with discrete soralia. Petractis luetkemuelleri and P. nodispora are accommodated in the new genus Neopetractis, differing from the generic type (P. clausa) by having a different phylogenetic position and a different photobiont. Francisrosea bicolor Ertz Sanderson gen. sp. nov. is described for a sterile sorediate lichen somewhat similar to Opegrapha corticola but having an isolated phylogenetic position as ... Article in Journal/Newspaper Paul Islands Université de Rennes 1: Publications scientifiques (HAL) Paul Islands ENVELOPE(-63.716,-63.716,-64.283,-64.283) Saint-Paul ENVELOPE(-57.715,-57.715,51.467,51.467) The Lichenologist 53 1 45 61 |